At the end of the Oscar-winning documentary “Navalny,” Russian opposition leader Alexei Navalny delivers a final chilling message.

“I’ve got something very obvious to tell you. You’re not allowed to give up,” the long-time nemesis of Russian President Vladimir Putin said in Russian as he looked into the camera.

Navalny, 47, reportedly died Friday in an Arctic prison, where he was serving a 19-year sentence on charges he and his supporters said were politically driven by Putin.

The Russian Federal Prison Service said Navalny “felt unwell after a walk” and “almost immediately” lost consciousness. He later was pronounced dead.

The day before, he was seen smiling and joking during a court appearance via video.